Title :
Application of image smoothing algorithm
Author :
Zhang, Xin ; Wang, Rui-Guang ; Zheng, Xi-Feng
Author_Institution :
Changchun Inst. of Opt., Fine Mech. &, Phys., Chinese Acad. of Sci., Changchun, China
Abstract :
With the application of CCD image sensor, the display effect of LED display panel is greatly improved. Due to the pixel response non-uniformity of CCD, it usually brings a “center dark, surround light” defect on LED display panel. Based on image smoothing algorithm, a calibration method for this defect is proposed in this paper. After calibration, the display uniformity deviation of LED display panel can be narrowed from 12.9% to 0.73%. Experimental results show that the method overcomes the inherent defect and achieves the desired effect.
Keywords :
CCD image sensors; LED displays; calibration; image processing; CCD image sensor; LED display panel; calibration method; image smoothing algorithm; pixel response nonuniformity; Brightness; Calibration; Cameras; Charge coupled devices; Light emitting diodes; Pixel; calibration; imaging; smoothing filter; uniformity;
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
DOI :
10.1109/CISP.2010.5647444
